{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949063,-0.315087,0.000000,0.000000,0.176213,-0.530764,0.828998,0.000000,-0.260656,0.785113,0.561833,0.000000,-1664258.064158,5012856.234056,3563226.136582,1],    "boundingVolume": {    "region": [1.891294,0.596589,1.891395,0.596611,0.000000,10.428684]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/9_1419387.b3dm"}}}